{"id":3379,"date":"2026-01-29T01:04:20","date_gmt":"2026-01-28T17:04:20","guid":{"rendered":"https:\/\/www.xiaobuwq.com\/blog\/what-is-precision-of-small-step-outdoor-location-factors-affecting-gps-positioning-error"},"modified":"2026-01-29T01:04:20","modified_gmt":"2026-01-28T17:04:20","slug":"what-is-precision-of-small-step-outdoor-location-factors-affecting-gps-positioning-error","status":"publish","type":"post","link":"https:\/\/www.xiaobuwq.com\/blog\/what-is-precision-of-small-step-outdoor-location-factors-affecting-gps-positioning-error","title":{"rendered":"\u4ec0\u4e48\u662f\u5c0f\u6b65\u5916\u52e4\u5b9a\u4f4d\u7684\u7cbe\u786e\u5ea6\uff1f\u6df1\u5ea6\u89e3\u6790GPS\u5b9a\u4f4d\u7684\u8bef\u5dee\u56e0\u7d20"},"content":{"rendered":"<p>\u5bf9\u4e8e\u4f9d\u8d56\u5916\u52e4\u56e2\u961f\u7684\u4f01\u4e1a\u7ba1\u7406\u8005\u800c\u8a00\uff0c\u7cbe\u51c6\u7684\u4f4d\u7f6e\u4fe1\u606f\u662f\u4fdd\u969c\u6548\u7387\u3001\u786e\u4fdd\u5408\u89c4\u7684\u57fa\u77f3\u3002\u7136\u800c\uff0c\u4e00\u4e2a\u666e\u904d\u5b58\u5728\u7684\u56f0\u60d1\u662f\uff1a\u4e3a\u4ec0\u4e48\u5916\u52e4\u4eba\u5458\u7684\u5b9a\u4f4d\u65f6\u800c\u7cbe\u786e\uff0c\u65f6\u800c\u53c8\u51fa\u73b0\u660e\u663e\u504f\u5dee\uff1f\u6211\u4eec\u7a76\u7adf\u8be5\u5982\u4f55\u5ba2\u89c2\u770b\u5f85\u548c\u7ba1\u7406\u8fd9\u4e9b\u5b9a\u4f4d\u6570\u636e\uff1f<\/p>\n<p>\u8fd9\u4e2a\u95ee\u9898\u7684\u6838\u5fc3\uff0c\u5728\u4e8e\u7406\u89e3\u5b9a\u4f4d\u7cbe\u786e\u5ea6\u5e76\u975e\u4e00\u4e2a\u6052\u5b9a\u7684\u7edd\u5bf9\u503c\uff0c\u800c\u662f\u4e00\u4e2a\u53d7\u591a\u91cd\u56e0\u7d20\u5f71\u54cd\u7684\u52a8\u6001\u7ed3\u679c\u3002\u4ee5\u5c0f\u6b65\u5916\u52e4\u4e3a\u4f8b\uff0c\u5728\u7406\u60f3\u7684\u5f00\u9614\u73af\u5883\u4e0b\uff0c\u5176\u5b9a\u4f4d\u7cbe\u786e\u5ea6\u901a\u5e38\u53ef\u4ee5\u8fbe\u52305\u81f315\u7c73\u7684\u8303\u56f4\u3002\u8fd9\u4e2a\u6570\u503c\u5728\u5546\u4e1a\u5e94\u7528\u4e2d\u5df2\u5c5e\u4f18\u5f02\uff0c\u4f46\u8981\u771f\u6b63\u7406\u89e3\u5176\u80cc\u540e\u7684\u542b\u4e49\uff0c\u6211\u4eec\u9700\u8981\u6df1\u5165\u5256\u6790GPS\u5b9a\u4f4d\u7684\u6280\u672f\u539f\u7406\u4e0e\u73b0\u5b9e\u4e16\u754c\u4e2d\u7684\u79cd\u79cd\u6311\u6218\u3002<\/p>\n<h2>\u91cd\u65b0\u5b9a\u4e49\u8ba4\u77e5\uff1a\u4ec0\u4e48\u662f\u771f\u6b63\u7684\u201c\u5b9a\u4f4d\u7cbe\u786e\u5ea6\u201d\uff1f<\/h2>\n<p>\u5728\u8ba8\u8bba\u5b9a\u4f4d\u95ee\u9898\u65f6\uff0c\u6211\u4eec\u5e38\u5e38\u6df7\u6dc6\u4e24\u4e2a\u5173\u952e\u6982\u5ff5\uff1a\u7cbe\u786e\u5ea6\uff08Accuracy\uff09\u4e0e\u7cbe\u5bc6\u5ea6\uff08Precision\uff09\u3002\u5398\u6e05\u4e8c\u8005\u7684\u533a\u522b\uff0c\u662f\u79d1\u5b66\u8bc4\u4f30\u5b9a\u4f4d\u670d\u52a1\u4ef7\u503c\u7684\u7b2c\u4e00\u6b65\u3002<\/p>\n<h3>\u7cbe\u786e\u5ea6 vs. \u7cbe\u5bc6\u5ea6\uff1a\u4e00\u5b57\u4e4b\u5dee\uff0c\u8c2c\u4ee5\u5343\u91cc<\/h3>\n<p>\u6211\u4eec\u53ef\u4ee5\u7528\u4e00\u4e2a\u6253\u9776\u7684\u6bd4\u55bb\u6765\u6e05\u6670\u5730\u533a\u5206\u5b83\u4eec\uff1a<\/p>\n<ul>\n<li><strong>\u7cbe\u786e\u5ea6 (Accuracy)<\/strong>\uff1a\u6307\u7684\u662f\u5b9a\u4f4d\u7ed3\u679c\u4e0e\u771f\u5b9e\u4f4d\u7f6e\u7684\u63a5\u8fd1\u7a0b\u5ea6\u3002\u5728\u6253\u9776\u4e2d\uff0c\u8fd9\u76f8\u5f53\u4e8e\u6240\u6709\u5f39\u7740\u70b9\u662f\u5426\u90fd\u7d27\u5bc6\u56f4\u7ed5\u9776\u5fc3\u3002\u5373\u4f7f\u5f39\u7740\u70b9\u4e4b\u95f4\u6bd4\u8f83\u5206\u6563\uff0c\u4f46\u5b83\u4eec\u7684\u5e73\u5747\u4f4d\u7f6e\u5728\u9776\u5fc3\uff0c\u6211\u4eec\u79f0\u4e4b\u4e3a\u201c\u9ad8\u7cbe\u786e\u5ea6\u201d\u3002<\/li>\n<li><strong>\u7cbe\u5bc6\u5ea6 (Precision)<\/strong>\uff1a\u6307\u7684\u662f\u591a\u6b21\u5b9a\u4f4d\u7ed3\u679c\u4e4b\u95f4\u7684\u4e00\u81f4\u6027\u6216\u79bb\u6563\u7a0b\u5ea6\u3002\u5728\u6253\u9776\u4e2d\uff0c\u8fd9\u76f8\u5f53\u4e8e\u6240\u6709\u5f39\u7740\u70b9\u662f\u5426\u90fd\u96c6\u4e2d\u5728\u4e00\u4e2a\u5f88\u5c0f\u7684\u533a\u57df\u5185\u3002\u5373\u4f7f\u8fd9\u4e2a\u533a\u57df\u504f\u79bb\u4e86\u9776\u5fc3\uff0c\u6211\u4eec\u4f9d\u7136\u79f0\u4e4b\u4e3a\u201c\u9ad8\u7cbe\u5bc6\u5ea6\u201d\u3002<\/li>\n<\/ul>\n<p>\u5bf9\u4e8e\u5916\u52e4\u7ba1\u7406\u800c\u8a00\uff0c\u6211\u4eec\u66f4\u5173\u5fc3\u7684\u662f<strong>\u7cbe\u786e\u5ea6<\/strong>\u3002\u4e00\u4e2a\u9ad8\u7cbe\u5bc6\u4f46\u4f4e\u7cbe\u786e\u7684\u5b9a\u4f4d\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7a33\u5b9a\u5730\u5c06\u60a8\u7684\u5458\u5de5\u6807\u8bb0\u5728\u9694\u58c1\u8857\u9053\u7684\u540c\u4e00\u4f4d\u7f6e\uff0c\u8fd9\u663e\u7136\u662f\u65e0\u6548\u7684\u3002\u6211\u4eec\u7684\u76ee\u6807\u662f\uff0c\u5b9a\u4f4d\u70b9\u8981\u5c3d\u53ef\u80fd\u5730\u63a5\u8fd1\u5458\u5de5\u7684\u771f\u5b9e\u6240\u5728\u3002<\/p>\n<h3>\u8861\u91cf\u5b9a\u4f4d\u7684\u884c\u4e1a\u6807\u5c3a\uff1aCEP\u3001RMS\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u5728\u4e13\u4e1a\u9886\u57df\uff0c\u6211\u4eec\u4e0d\u4f1a\u7528\u201c\u5f88\u51c6\u201d\u6216\u201c\u4e0d\u51c6\u201d\u8fd9\u6837\u6a21\u7cca\u7684\u8bcd\u6c47\uff0c\u800c\u662f\u4f7f\u7528\u7edf\u8ba1\u5b66\u5de5\u5177\u6765\u91cf\u5316\u5b9a\u4f4d\u6027\u80fd\u3002<\/p>\n<ul>\n<li><strong>CEP (Circular Error Probable\uff0c\u5706\u6982\u7387\u8bef\u5dee)<\/strong>\uff1a\u8fd9\u662f\u6700\u5e38\u7528\u7684\u4e00\u4e2a\u6307\u6807\u3002\u4f8b\u5982\uff0cCEP\u4e3a10\u7c73\u610f\u5473\u7740\uff0c\u670950%\u7684\u5b9a\u4f4d\u70b9\u4f1a\u843d\u5728\u4ee5\u771f\u5b9e\u4f4d\u7f6e\u4e3a\u4e2d\u5fc3\u3001\u534a\u5f84\u4e3a10\u7c73\u7684\u5706\u5708\u5185\u3002\u5b83\u63cf\u8ff0\u7684\u662f\u4e00\u4e2a\u6982\u7387\u5206\u5e03\uff0c\u800c\u975e\u5355\u6b21\u5b9a\u4f4d\u7684\u7edd\u5bf9\u8bef\u5dee\u3002<\/li>\n<li><strong>RMS (Root Mean Square\uff0c\u5747\u65b9\u6839\u8bef\u5dee)<\/strong>\uff1a\u5b83\u8861\u91cf\u7684\u662f\u6240\u6709\u5b9a\u4f4d\u70b9\u5230\u771f\u5b9e\u4f4d\u7f6e\u7684\u8ddd\u79bb\u7684\u5e73\u5747\u79bb\u6563\u7a0b\u5ea6\u3002\u8fd9\u4e2a\u503c\u66f4\u80fd\u53cd\u6620\u5b9a\u4f4d\u8bef\u5dee\u7684\u6574\u4f53\u6ce2\u52a8\u60c5\u51b5\u3002<\/li>\n<\/ul>\n<p>\u7406\u89e3\u4e86\u8fd9\u4e9b\uff0c\u6211\u4eec\u5c31\u80fd\u5efa\u7acb\u4e00\u4e2a\u6838\u5fc3\u8ba4\u77e5\uff1a\u4efb\u4f55\u5b9a\u4f4d\u670d\u52a1\u7684\u7cbe\u786e\u5ea6\uff0c\u672c\u8d28\u4e0a\u90fd\u662f\u4e00\u4e2a\u6982\u7387\u8303\u56f4\uff0c\u800c\u975e\u4e00\u4e2a\u56fa\u5b9a\u4e0d\u53d8\u7684\u627f\u8bfa\u3002\u7ba1\u7406\u8005\u9700\u8981\u5173\u6ce8\u7684\u662f\uff0c\u5728\u7edd\u5927\u591a\u6570\u4e1a\u52a1\u573a\u666f\u4e0b\uff0c\u8fd9\u4e2a\u6982\u7387\u8303\u56f4\u662f\u5426\u80fd\u6ee1\u8db3\u7ba1\u7406\u9700\u6c42\u3002<\/p>\n<h2>\u6df1\u5ea6\u6eaf\u6e90\uff1a\u5f71\u54cdGPS\u5b9a\u4f4d\u7cbe\u786e\u5ea6\u7684\u4e09\u5927\u8bef\u5dee\u6765\u6e90\u4e0e\u4e03\u5927\u6838\u5fc3\u56e0\u7d20<\/h2>\n<p>\u624b\u673a\u63a5\u6536\u5230\u7684GPS\u4fe1\u53f7\uff0c\u4ece\u6570\u4e07\u516c\u91cc\u5916\u7684\u592a\u7a7a\u7a7f\u884c\u81f3\u5730\u9762\uff0c\u5176\u95f4\u4f1a\u53d7\u5230\u5404\u79cd\u5e72\u6270\uff0c\u5bfc\u81f4\u8bef\u5dee\u7684\u4ea7\u751f\u3002\u6211\u4eec\u53ef\u4ee5\u5c06\u8fd9\u4e9b\u8bef\u5dee\u7684\u6765\u6e90\u5f52\u7ed3\u4e3a\u4e09\u4e2a\u5c42\u9762\uff1a\u536b\u661f\u6e90\u5934\u3001\u4fe1\u53f7\u4f20\u64ad\u8def\u5f84\u548c\u7ec8\u7aef\u63a5\u6536\u73af\u5883\u3002<\/p>\n<h3>\u6765\u6e90\u4e00\uff1a\u6765\u81ea\u592a\u7a7a\u7684\u6311\u6218\uff08\u536b\u661f\u6e90\u5934\u8bef\u5dee\uff09<\/h3>\n<ul>\n<li>\n<p><strong>\u56e0\u7d201\uff1a\u536b\u661f\u65f6\u949f\u8bef\u5dee<\/strong>GPS\u5b9a\u4f4d\u7684\u539f\u7406\uff0c\u662f\u901a\u8fc7\u6d4b\u91cf\u4fe1\u53f7\u4ece\u536b\u661f\u5230\u63a5\u6536\u673a\u7684\u4f20\u64ad\u65f6\u95f4\u6765\u8ba1\u7b97\u8ddd\u79bb\u3002\u8fd9\u4e2a\u8ba1\u7b97\u5bf9\u65f6\u95f4\u7cbe\u5ea6\u8981\u6c42\u6781\u9ad8\uff0c\u56e0\u4e3a\u5149\u901f\u7ea6\u4e3a\u6bcf\u79d230\u4e07\u516c\u91cc\u3002\u8fd9\u610f\u5473\u7740\uff0c\u4ec5\u4ec51\u7eb3\u79d2\uff08\u5341\u4ebf\u5206\u4e4b\u4e00\u79d2\uff09\u7684\u65f6\u95f4\u8bef\u5dee\uff0c\u5c31\u4f1a\u5bfc\u81f4\u7ea60.3\u7c73\u7684\u8ddd\u79bb\u8ba1\u7b97\u504f\u5dee\u3002\u5c3d\u7ba1\u536b\u661f\u4e0a\u642d\u8f7d\u4e86\u6781\u5176\u7cbe\u5bc6\u7684\u539f\u5b50\u949f\uff0c\u4f46\u5fae\u5c0f\u7684\u6f02\u79fb\u4ecd\u5728\u6240\u96be\u514d\uff0c\u8fd9\u662f\u5b9a\u4f4d\u8bef\u5dee\u7684\u56fa\u6709\u6765\u6e90\u4e4b\u4e00\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u56e0\u7d202\uff1a\u536b\u661f\u661f\u5386\u8bef\u5dee<\/strong>\u624b\u673a\u5728\u5b9a\u4f4d\u65f6\uff0c\u9700\u8981\u77e5\u9053\u6bcf\u9897\u536b\u661f\u5728\u592a\u7a7a\u4e2d\u7684\u7cbe\u786e\u4f4d\u7f6e\uff0c\u8fd9\u4e9b\u6570\u636e\u88ab\u79f0\u4e3a\u201c\u661f\u5386\u201d\u3002\u661f\u5386\u7531\u5730\u9762\u76d1\u63a7\u7ad9\u8ba1\u7b97\u5e76\u4e0a\u4f20\u7ed9\u536b\u661f\uff0c\u518d\u7531\u536b\u661f\u5e7f\u64ad\u4e0b\u6765\u3002\u7136\u800c\uff0c\u8fd9\u4e2a\u201c\u8f68\u9053\u9884\u62a5\u201d\u4e0d\u53ef\u80fd\u505a\u5230100%\u51c6\u786e\uff0c\u536b\u661f\u7684\u5b9e\u9645\u4f4d\u7f6e\u4e0e\u5e7f\u64ad\u7684\u661f\u5386\u4f4d\u7f6e\u4e4b\u95f4\u5b58\u5728\u7684\u504f\u5dee\uff0c\u4f1a\u76f4\u63a5\u8f6c\u5316\u4e3a\u5730\u9762\u4e0a\u7684\u5b9a\u4f4d\u8bef\u5dee\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u6765\u6e90\u4e8c\uff1a\u4fe1\u53f7\u4f20\u64ad\u7684\u201c\u957f\u5f81\u4e4b\u8def\u201d\uff08\u4fe1\u53f7\u4f20\u64ad\u8bef\u5dee\uff09<\/h3>\n<ul>\n<li>\n<p><strong>\u56e0\u7d203\uff1a\u7535\u79bb\u5c42\u5ef6\u8fdf<\/strong>GPS\u4fe1\u53f7\u5728\u7a7f\u8d8a\u8ddd\u79bb\u5730\u9762\u7ea650-1000\u516c\u91cc\u7684\u5927\u6c14\u7535\u79bb\u5c42\u65f6\uff0c\u4f1a\u53d7\u5230\u8be5\u533a\u57df\u5185\u5e26\u7535\u7c92\u5b50\u7684\u5f71\u54cd\uff0c\u5bfc\u81f4\u4fe1\u53f7\u4f20\u64ad\u901f\u5ea6\u51cf\u6162\u3002\u8fd9\u79cd\u5ef6\u8fdf\u6548\u5e94\u662fGPS\u5b9a\u4f4d\u6700\u5927\u7684\u8bef\u5dee\u6e90\u4e4b\u4e00\uff0c\u5c24\u5176\u662f\u5728\u592a\u9633\u6d3b\u52a8\u5267\u70c8\u65f6\u66f4\u4e3a\u663e\u8457\u3002\u5176\u9020\u6210\u7684\u8bef\u5dee\u53ef\u8fbe\u6570\u7c73\u751a\u81f3\u6570\u5341\u7c73\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u56e0\u7d204\uff1a\u5bf9\u6d41\u5c42\u5ef6\u8fdf<\/strong>\u4fe1\u53f7\u7a7f\u8fc7\u7535\u79bb\u5c42\u540e\uff0c\u8fd8\u8981\u7ecf\u8fc7\u9760\u8fd1\u5730\u9762\u7684\u5bf9\u6d41\u5c42\uff08\u5927\u6c14\u5c42\u6700\u4f4e\u7aef\uff0c\u7ea610-15\u516c\u91cc\u9ad8\uff09\u3002\u5bf9\u6d41\u5c42\u4e2d\u7684\u6c34\u84b8\u6c14\u3001\u6e29\u5ea6\u548c\u6c14\u538b\u53d8\u5316\u4f1a\u4f7f\u4fe1\u53f7\u53d1\u751f\u6298\u5c04\uff0c\u4ea7\u751f\u7c7b\u4f3c\u5149\u7ebf\u5728\u6c34\u4e2d\u5f2f\u6298\u7684\u6548\u679c\uff0c\u4ece\u800c\u5ef6\u957f\u4e86\u4fe1\u53f7\u7684\u4f20\u64ad\u8def\u5f84\uff0c\u9020\u6210\u5ef6\u8fdf\u3002\u8fd9\u79cd\u8bef\u5dee\u901a\u5e38\u5728\u7c73\u7ea7\u8303\u56f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